SODIUM TRIPOLYPHOSPHATE (STTPE)

Sodium triphosphate, also known as sodium tripolyphosphate or tripolyphosphate, is an inorganic compound with the chemical formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid.

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Sodium Tripolyphosphate

Sodium tripolyphosphate, also known as sodium triphosphate (abbreviated as STPP), is a chemical compound belonging to the polyphosphate family. It is widely used in various industries, including the food industry, due to its specific chemical properties.

  • Function in the Food Industry: Sodium tripolyphosphate is used in the food industry as a food additive. It serves several functions, including:
  • Sequestrant Agent: It can act as a sequestrant to chelate metal ions present in water, helping prevent the degradation of colors and flavors in certain foods.
  • Texture Improvement: It is used in some processed meats, including fish products, to enhance texture and water retention.
  • Stabilization: It can be employed to stabilize dairy products, desserts, and other food items.
  • Other Applications: Outside the food industry, sodium tripolyphosphate is utilized in various applications, particularly in the detergent industry due to its metal ion sequestration properties.
  • Form: It is generally found in the form of a white powder.
  • Safety: Sodium tripolyphosphate is generally recognized as safe (GRAS) when used in accordance with good manufacturing practices in food products.
  • Regulation: Health authorities establish limits on the use of sodium tripolyphosphate in foods to ensure consumer safety.
  • Labeling: When used in food products, sodium tripolyphosphate must be listed in the ingredient list on the label.

Data sheet

CAS Number
7758-29-4
HS Code
28353100
Chemical Formula
Na₅P₃O₁₀
Appearance
Powder
Packaging
25kg bag
Name / Reference
SODIUM TRIPOLYPHOSPHATE (STTPE)

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